Paper-perforator.



A. KRAUTH.

PAPER PERFORATOR.

APPLICATION FILED SEPT. 10, I915.

1 ,27 1,727. Patented July 9, 1918;

2 SHEETSSHEET I.

attoanmga.

. A. KRAUTH.

PAPER PERFORATOR.

APPLlCATION FILED SEPT. 10. 1915.

Patented July 9, 1918.

2 SHEETS-SHEE] Ill lll ll ll llll II "I!" 9424M Wax $0M ALBERT KRAUTH, 0F HAMILTON, OHIO.

PAPER-PERFORATOR.

Specification of Letters Patent.

Patented July '9, 1918.

Application filed September 10, 1915. Serial No. 49,958.

To all whom it may concern.

Be itknown that I, ALBERT KRAUTH, a citizen of the United States, and residing at Hamilton, in the county of. Butler and State of Ohio, have invented a new and useful Improvement in Paper-Perforators, of which the following specification is a full disclosure. L

My invention relates to perforating devices primarily rotary as to their mode of operation, in'which coacting punch and die members are respectively mounted upon companion rotary carriers, and operating upon a continuously moving or traveling material, fed between the carriers. The punch and die members cooperatively meshing or moved in registry at a tangent point of the carriers, and in each revolution thereof. Such action between the corresponding proportioned punch members brings them in telescopic registry extensively beyond a tangent line of the carriers resulting in rel* ative different angular velocity, requiring a delicate adjustment of depth of mesh to avoid injury to either, or to the perforations outlined in the paper.

The invention herein deals with the means for delicately and conveniently relatively adjusting the punch and die members, or the reach of one of them, to insure their proper mesh, and in movably mounting the punch member adapting it at a proper interval or station in its orbit to be engaged by actuator means for urging it toward and into mesh with its companion die member. The latter feature provides for meshing the member to a greater degree without injury to parts or interference to their motions with the carrier flotation; the radial movement of the punch member compensating for the variation in the different angular velocity, and also for neutralizing the perforator parts at will, during a continued rotation of their supporting carriers.

The various features and advantages of the invention will be more fully set forth in the following description of the drawings, forming a part hereof and illustrating a preferred embodiment of the invention, and in such drawings like characters of reference denote corresponding parts throughout the several views, of which Figure 1 is a central vertical section of a perforator embodying my invention. Fig,

2 is an end elevation thereof, Fig. 3 is an enlarged detail View partly in section of one set of punch and die carriers shown in Fig. 1 with a modified form of punch member. Fig. 4 is an enlarged detail sectional View of the die member as mounted within its carrier.

The perforator mechanism, as illustrated,

may be embodied as a component of a printing press of a type illustrated in a prior patent issued to me March 16, 1915, No. 1,132,191, operating upon a continuously fed or moving strip of paper, for perforating the same at determined or measured spacing longitudinally. The proper rate of feed and rotation of perforator carriers operate at relative ratios for producing a de termined measured spacing of perforator longitudinal of the paper. The transmission means for the carriers and paper feeding devices, While essential to the operation of the invention herein, are readily perceived by any one skilled in the art, and for suitable devices therefor reference is had to the aforesaid patent, so that detail disclosure and description thereof are omitted herein.

In the drawings, 1 indicates opposite side frames providing bearings for journaling and supporting the parallel shafts 2 and 3. Shaft 2 supporting the carriers 4 for the punch members and shaft 3, the carriers 5 for the dies, said shafts being connected by gears 10, 4:1, for relatively positively rotating the same. Two duplicate sets of carriers are embodied herein, although their number, as well as the spacing distance, is optional, depending upon the job requirements, and therefore the detail description will be confined to one set of carriers. The punch carrier 4 comprises a disk having a pair of parallel laterally projecting.circumferential flanges 6, 7, projecting therefrom, to provide a bearing for the punches 8-8, herein diametrically opposite. The number of punches and their relative spacing being optional. Each punch 8 is slidably mounted in the flanges 6, 7, one end projecting beyond the inner periphery of the inner flange 7 and its opposite end adapted to be moved beyond the outer periphery of the outer flange 6' A spring 9 encircles the punch between the flanges, one end thereof engaging the flange 6 and the opposite end thereof a pin 10 fixed to and projecting through the-punch. The spring yieldingly urging the punch inward toward its carrier axls to normally maintain the same in an inactive position. I

The die carrier 5, companion to the punch carrier, comprises a disk fixed to the shaft 8 having a laterally extended peripheral flange 11 for supportingly receiving the dies 12 alined with the punches of the carrier 4. The dies herein comprise removable thimble inserts annularly'flanged -to provide a shoulder engaging the periphery of the carrier flange, and a tapering bore of an outline corresponding with that of its companion punch or punches cooperating therewith. The dies 12 each have a friction fit within its carrier bore to secure the same in place, and therefore cannot shift radially or be thrown out of alinement with its cooperating punch member. The dies and punches however, may be of any design or c0nstruc+ tion within the concept of the invention.

The punches and dies cooperate at a tangent point between the carriers and each punch moves radially at a proper interval in its orbit about the carrier axis into mesh or registry with a relatively alined companion die. This enables the perforating members to cooperate to a reater mesh depth, the radial movements 0 one of them compensating for the differential angular velocity between the members, avoiding injury to the parts and insuring a perfect, sharp cut through the paper. The rolling motion is not relied upon to bring the parts into paper cutting cooperation as in rotary perforating devices, employing fixed punches, and therefore no delicate reach adjustment is required.

The means for moving or controlling the movements of the punches may be thrown to a position to render the punches inoperative during the rotation of the carriers, and as illustrated, the punches of all of the carriers of the series are simultaneously controlled, as preferably for a particular class of work, but it is obvious that independent means for moving and controlling the punch of each carrier may be provided, and as the punch actuating parts of each carrier are of duplicate construction, a description of one set of these parts is sufiicient herein, noting, however, that the various shafts and rods of one extend to couple with those of another, offering a unity of operation and stability.

Such mechanism comprising a rock shaft 13 extending, between and journaled in the side frames 1, intermediately provided with a handle 14 for rocking the shaft. An arm 15 is fixed to the rock shaft 13 pivotally connect'ing with a link 16, the link 16 pivotally connecting with the toggle links 17, 18. The toggle link 17 fulcrums upon the rod 19 extended between and supported by the side connected to the lever arm 20 and preferably intermediate of its'ends, with one end fulcrumed upon the rock shaft 13 and its opposite end provided with a roller 21 projected intermediate of the carrier axis and inner flange to engage with and move the punches at a proper lnterval in each carrier cycle. 4

In such position the lever devices confine the lever arm 20 against any yielding or retarding motion as its roller is engaged by a punch, although free to be thrown upwardly, or toward the carrier axis to clear its roller from punch engagement. The roller functions as a cam for forcing the punches ra-' dially through the paper fed between the carrierand into mesh or registry with a relatively companion die. A In the plural arrangement of punch actuating lever mechanism shown, it will be obvious that the pivot connecting the arm 15 to link 16 comprises a rod 22 extended to reach from one set to a corresponding second set, opposite, with the fulcrum 23 connect ing link 16 to the toggle links, and fulcrum 24 connecting the link 18 to the lever arm 20 as well as the axis 25, for the rollers are similarly extended, to join the duplicate parts of both sets. The lever mechanism locates' the punch actuating rollers definitely within the orbital path of the punch ends, for a required degree of punch motion, and presents the perforating mechanism in a very simple form of construction. When a carrier is provided with a plurality of punches or plural series, following an arrangement as illustrated in Fig. 3, it is desirable toorender the reach of each individual punch adjustable to insure a proper depth registry or mesh of each with its companion die, within a definite punch operating motion common to all. This is of advantage when the length of a punch is reduced by sharpening or other causes. The punch and die carriers shown in Fig. 3 represent a modification over the forms illustrated in Figs. 1 and 2, adapting the same for a plural series of punches. The punch carrier is provided with a central web 26 having a concentric series of annular flanges 27 and 28, and projecting from the opposite faces of.

ably supports the punches. Each punch comprises apunch member 30 having a screw-threaded endengaged into the squared end of the shank member 31. Within the threaded bore of the squared end of the shank member I lprovide a set screw 32 serving as an adj usta le stop for the punch member 30. To adjust or varythe reach of the punch member the set screw 32 is adjusted inward or outward in the shank member to the degree desired, after which the punch member is threaded into the shank until it engages the set screw. The squared portion of the shank member guidingly engages with the web of the carriers to confi ne the punch against rotation. These punches are operated substantially as heretofore described, being positively moved in one direction by engagement with the roller, and retracted,

automatically by spring tension. Sometimes it is desirable to adjust the die radially withits carrier seat, and for such purpose I provide a set screw 33, see Fig. 4, screw-' threaded into the die and adapted to project therethrough and engage the seat surface in the carrier. This enables the die to be alined flush with the periphery of the carrier, such adjustment being of advantage when the carriers qualify also as paper feeding rolls.

A single set screw is suficient to pry the dies outwardly to the degree required, and being frictionally fitted into their sockets admit of such adjustment without being loosened.

Having described my invention, I claim 1. A machine of the class described, a pair of rotative perforator carriers for respectively cooperatively supporting punch and die members, a punch member radially movable and supported in one ofv said carriers, a cam functioning roller adapted to be stationed at a point in the orbitalpath of said punch member to actuate the same, and lever devices for supporting andmoving said roller toward and away from a punch cooperating station, said' lever devices including toggle links for rigidly sustaining said roller supporting parts.

2,-An article of manufacture comprising a punch having a separable shank axially screw-threaded upon one end, and a screw 'adjustably embedded within the punch receiving shank bore as an abutment for limiting the threading union between said members for definite punch reach setting.

3. An article of manufacture comprising a punch provided with a threaded end and a shank having a squared end portion with an axially threaded bore for extensibly uniting with vthe punch, and adjustable means for limiting the degrees of joining interengagement between said punch and shank and provide a seat for definite punch reach setting.

4.. A device of the class described comprising a die carrier bored to provide a die receiving seat, and a die removably inserted in said seat having a set-screw threaded therethrough to engage said carrier die seat for adjusting said die within the seat longitudinally with its axis; I

5. As an article of manufacture, a die hav-' ing a set-screw threaded therethrough par-' allel with the die axis and adapted to project beyond the base surface of the die to provide adjustable limits for die insertionwitha supporting seat.

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing Witnesses vF. G. Dmsnncrr,

M. WM. KRAUTH. 

